The downside? WH's are 0.0 space -- so anyone can and will gank you. No stations, in which case you'll need either a well-armed POS (good), an Orca (not bad) or both (best) for support. You will also need a damn good salvager toon -- or don't bother, because that's where the real ISK is in Sleepers, the salvage. And finally, you also need a very good exploration toon, preferably with a Cov Ops frig for scanning, to find both the anomalies AND all the other useful stuff -- not the least of which are the wormholes you need to get out to Hi Sec and sell all your sleeper stuff.

Something the solo player can do? Sure, with a couple of Alts on additional accounts.

I make about 100M an hour solo in class 3s (I can do a bit more than 2 sites in an hour in my Domi and each site is worth around 50 million or so). Making money isn't my primary activity in EvE so it not being steady income isn't a big deal - when a good wormhole opens in a favorable spot I do some sites, but as long as my wallet is in good shape I'm not very proactive about finding them.

CONCORD seems to think I'm some kind of evil pirate so I can't mission in highsec, no other income source in lowsec even comes close. Missions and lowsec exploration both pay much less, and interruptions are much more frequent. Wormholes take me out of local so people don't call their prober friends, and players who routinely probe for targets are very rare. And even when they do find my wormhole I have more warning time since my alt (who does the cleanup) will almost always see them come in, plus the heads-up from my scanner. Works out quite nicely actually.

There are several macro ravens that work near us in stain (-SALT corp, Brick Squad alliance, although they were doing it before being in brick, no clue why they were let in), and they are near impossible to catch and kill.

Every time I'm passing through I warp to belt in case I get the right one before they safe but nothing yet.

Being CEO of a large 0.0 corp?? are you serious?? CEO's of a large corp are amoung the most broke people in eve, they often use there own cash to pump into corp wallet just to keep everything running. That was a stupid statement.

Best way to make cash used to be empire ganking. Depending on how good you where at it :):)